Well, Ianthe is pronounced ee-an-thee like Ian is pronounced ee-an, so that's one that I find strange that people often mispronounce it. I don't know if a lot of people would know you're pronouncing it wrong, but I would assume a lot of people would try to pronounce it ee-an-thee or ee-an-the like Ian.

Gah. Oh well. Goodbye Ianthe. I could justify correcting people only if it's a "legitimate" alternate pronunciation, which I doubted, but it was worth asking. Maybe I'll be able to talk hubby into Niobe nn Io

I don't read ee-an-thee (ee-ANNE-thee) like Ian (EE-uhn), so maybe that's why I don't associate the two. I also know an Ian pronounced EYE-uhn, just to play devils advocate, hehe.

Nameberry also says to pronounce Thalia as Tahl-yuh which is completely wrong with Greek pronunciation rules because Thalia is thay-lee-uh. ^_^ No offense to Nameberry, but they're not perfect or always right. ^_^

Actually, when I took my Classics courses when at my university (which is one of the best in my state and including Greek mythology and a study of the ancient Greek language), most of these were pronounced the same way I'm pronouncing them and the way most modern Greek people I know pronounce them (such as Athena, which is not and never was Atena).
As far as the E ending, that's accurate because the ee sound comes of sort of like an ay when you say it in Greek, but in English is closer to ee.

I don't mean to be argumentative, but when it comes to the Greek language, i have a very extensive background in modern and ancient Greek, I speak Greek almost as well as I speak English.